S355NL
1.0546Normalized fine-grain structural steel with 355 MPa yield and -50°C impact toughness. The most widely used fine-grain grade in EN 10025-3. Workhorse for offshore, bridges, cranes, and wind turbine towers in cold climates. Better low-temp toughness than S355J2.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | ASTM | USA | ASTM A572 Gr 50 (approx) | — | REF |
| 🇪🇺 | EN | Europe | S355NL | 1.0546 | 100% |
Sources: ASTM A572, EN 10025-3:2019
Chemical composition comparison (wt%)
Side-by-side: S355NL (EN 10025-3) vs S355NL (EN) (EN 10025-3:2019)
| Element | S355NL (EN 10025-3) | S355NL (EN) | Overlap |
|---|---|---|---|
| C | — | 0–0.18% | — |
| Si | — | 0–0.5% | — |
Mechanical properties
Compatibility verdict
S355NL and S355NL: 100% composition match
Related materials
C45
1.0503Medium carbon unalloyed quality steel. Good machinability and moderate strength after heat treatment. Widely used for shafts, spindles, pins, studs, and general machine parts.
S355JR
1.0045High-strength low-alloy structural steel with minimum yield strength of 355 MPa. Standard grade for bridges, buildings, cranes, and general structural applications. Impact tested at +20°C (JR).
S235JR
1.0038General-purpose structural steel with minimum yield strength of 235 MPa. The most common structural steel grade in Europe for general construction, frames, and non-critical structural applications.
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